Plastic water bags, commonly known as water sachets in some African regions, are small, heat-sealed packets filled with purified drinking water, offering a convenient and portable solution. In some Latin American and African countries, it is more common to find people selling water sachets in the streets than traditional bottled water.

Producing this product is more cost-effective than plastic bottles, offering easier transportation as well. Some of its advantages are enhanced hygiene through its sealed design, an extended shelf life ensuring long-term water safety, and its affordability resulting from its low-cost production.